doug schwartz runs quinnipiac universitys polling institute. >> right now, pew has romney up by three points. gallup has obama up by five points in their seven-day track, but since the debate they have obama up by just three points. >> reporter: or how about old friend ray fair, an economist we've been visiting every four years since the george h.w. bush administration. he's got an economic model. >> so right at this moment, its 49.5% of the two-party vote for obama. >> reporter: so the polls and models call it a toss-up. but curiously, the betting public tells a very different story. online betting prediction markets, like ireland's intrade, which takes bets from americans, and england's betfair, which doesnt, have made obama the strong favorite for months. the lone domestic and entirely legal betting haven, the iowa electronic maets at the university of iowa. ever frugal, we asked hari srinivasan, our man in the midwest-- at least last week-- to drop in. >> sreenivasan: this is the entire iowa electronic market? >> this is our server room right here. >> sreenivasan: so the entire pr